Home / 136,762.47-188,729.73-76,332.02

Finding the Fourth Proportional to 136,762.47, 188,729.73 and 76,332.02

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Solution

The fourth proportional to 136,762.47, 188,729.73 and 76,332.02 is: 105,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,762.47 : 188,729.73 = 76,332.02 : x
  2. Step 2: Convert to fraction form
    136,762.47/188,729.73 = 76,332.02/x
  3. Step 3: Cross multiply
    136,762.47x = 188,729.73 × 76,332.02
  4. Step 4: Simplify right side
    136,762.47x = 14,406,121,524.95
  5. Step 5: Solve for x
    x = 14,406,121,524.95/136,762.47
  6. Step 6: Final answer
    x = 105,336.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.